On April 7th, iTunes went 100% DRM-free, but at the same time Apple introduced tiered pricing. And therein lies the crux of this new lawsuit against Apple. Daniel and Barbara Owens of Illinois have filed a class action lawsuit against Apple. The couple has purchased “numerous” iTunes gift cards over the years, but in this case the gift cards were bought on March 1 from Sam’s Club and on May 19 from Wal-Mart. Here’s what the lawsuit says, in part: The above-mentioned 99¢ iTunes cards that were purchased